133240299 has 4 divisors (see below), whose sum is σ = 177653736. Its totient is φ = 88826864.

The previous prime is 133240291. The next prime is 133240319. The reversal of 133240299 is 992042331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133240299 - 2³ = 133240291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133240291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22206714 + ... + 22206719.

It is an arithmetic number, because the mean of its divisors is an integer number (44413434).

Almost surely, 2^133240299 is an apocalyptic number.

133240299 is a deficient number, since it is larger than the sum of its proper divisors (44413437).

133240299 is an equidigital number, since it uses as much as digits as its factorization.

133240299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44413436.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 133240299 is about 11542.9761760128. The cubic root of 133240299 is about 510.7541054701.

The spelling of 133240299 in words is "one hundred thirty-three million, two hundred forty thousand, two hundred ninety-nine".